초록 ▼

An continuous dry powder inhaler arrangement is disclosed, the arrangement being provided with electrostatically dosed medical powder onto an exchangeable dosing member like a cassette or the like for respiratory administration of medicaments into the deep or upper lung airways. The inhaler presents

An continuous dry powder inhaler arrangement is disclosed, the arrangement being provided with electrostatically dosed medical powder onto an exchangeable dosing member like a cassette or the like for respiratory administration of medicaments into the deep or upper lung airways. The inhaler presents a compact integrated device (8) with a case having a sliding lid (17), which can be set in an open position exposing a mouthpiece (19) or in a closed position. The arrangement further provides dose (18b/18c) counters and a cassette counter (34). In the state with open lid (17) the device is ready to deliver a prepared pre-metered dose of medical powder upon an inhalation via the exposed mouthpiece (19). Medical drugs are in advance dosed as medical powder and carried by an exchangeable dosing means and constitute dry powder substances or dry powder medical formulations prepared for continuous dosing during a preset period of operation. The exchangeable dosing member carries a number of sequentially accessible doses, which are sealed to preserve a controlled storing of powder during the total lifetime of the dosing member. The sealing is cut open during an inhalation process after that the device has been set into the open state by moving the sliding lid (17) to the open position. Upon an inhalation the cassette carrying a selected dose is released into a longitudinal motion by a forcing spring, whereby the protective foil is cut open to let a nozzle of a suction tube access the powder. By means of a braking arrangement the motion of the cassette is adjusted to such a speed that the time for a continuous delivery of the powder will be prolonged to an order of 1 to 2 seconds. The exchangeable dosing means presents a number of electrostatically deposited dry medical powder.

대표청구항 ▼

1. An inhaler device in combination with an exchangeable dosing member for respiratory administration of an inhalation powder into the deep or upper lung airways, comprising:a compact integrated assembly including a movable case having first and second states, the first state with a sliding cover in

1. An inhaler device in combination with an exchangeable dosing member for respiratory administration of an inhalation powder into the deep or upper lung airways, comprising:a compact integrated assembly including a movable case having first and second states, the first state with a sliding cover in a closed position enclosing an exchangeable mouthpiece, and the second state with the sliding cover in an open position exposing said exchangeable mouthpiece, the assembly in the second state being loaded and ready to deliver a prepared dose of medical powder upon an inhalation; a powder dose of the exchangeable dosing member being a dry powder substance or dry powder medical formulation prepared for a prolonged dosing sequence by said inhaler device controlling an activation time between 0.5 and 5 seconds for controlling a dose delivery time set within an activation time of said inhaler device, said exchangeable dosing member further providing a plurality of sequentially accessible doses; said exchangeable dosing member being a sealed dosing cassette and preserving a controlled water content and electrostatic state during a total life time of the sealed dosing cassette, a seal of the sealed dosing cassette being a foil, the foil sealing a dose being cut open when the device has been moved into the second state by moving the sliding cover to the open position, and when a user initiates an inhalation by sucking air through the exchangeable mouthpiece.